I would not pay $10 a month for a service that I can easily do myself for free. Here's what lifelock will do and what you can do for FREE:
1) Lifelock will have the credit bureaus place free fraud alerts on your accounts.
What you can do: Go to any of the three credit bureaus and request this on your own. You only need to request it from one agency and then that bureau will notify the others. Here are the phone numbers you can call to add an alert or view your report immediately:
Experian: 1 888 397 3742 experian.com
Equifax: 1 800 525 6285, equifax.com
TransUnion: 1 800 680 7289, transunion.com
(You only have to notify one agency and they will automatically notify the other two). You need to call one agency every 90 days as long as you want to keep the fraud alerts active.
2) Lifelock will request that your name be removed from pre-approved credit card and junk mail lists.
What you can do: You can easily do this yourself by going to one website and filling out a form that takes 1 minute to do.
https://www.optoutprescreen.com/?rf=t
When you fill out the form, you only need to fill out the "required" information. They have a place for you to enter your SSN and DOB, but you don't have to fill those parts in (I didn't). The list is active for 5 years, so after 5 years, you'll need to make the same request again.
3) Once a year, Lifelock will order free credit reports on your behalf from the major credit bureaus and they are sent directly to you.
What you can do: Do this yourself for free once a year from this website. There is no charge:
https://www.annualcreditreport.com/cra/index.jsp
It's actually better to order one of the three agency reports every 4 months because they basically report the same things. That way you can monitor your credit for free 3 times per year vs doing all of them for free one time per year.
4) If your wallet is lost/stolen, Lifelock will help you contact each credit card, bank or document issuing company, cancel your affected accounts and complete the paperwork and steps necessary to replace your lost documents.
What you can do: Do the same thing yourself with a few phone calls.
5) Lifelock claims that they will spend up to $1,000,000 to help you get back your good credit if it's ever stolen while you are a member of Lifelock.
What you can do: Not much, and despite their claims, Lifelock doesn't do much here either. They have so many loopholes in their policy that there have been lawsuits against the company, including a large class-action lawsuit going on right now. Just google "lifelock lawsuit" and you will find pages of lawsuits filed against the company.
The bottom line: Save your money, spend 15 minutes RIGHT NOW doing the above things and you will be getting the same benefits without the cost.